1920955 has 8 divisors (see below), whose sum is σ = 2320272. Its totient is φ = 1526688.

The previous prime is 1920923. The next prime is 1920959. The reversal of 1920955 is 5590291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1920955 - 2⁵ = 1920923 is a prime.

It is a super-2 number, since 2×1920955² = 7380136224050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1920959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (290034).

2^1920955 is an apocalyptic number.

1920955 is a deficient number, since it is larger than the sum of its proper divisors (399317).

1920955 is a wasteful number, since it uses less digits than its factorization.

1920955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 1920955 is about 1385.9852091563. The cubic root of 1920955 is about 124.3099038158.

The spelling of 1920955 in words is "one million, nine hundred twenty thousand, nine hundred fifty-five".